Area Code +351-22-(5550000...5559999) located in Porto, Porto (13), more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 22 Subscriber Number From : 5550000 Subscriber Number To : 5559999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : TRANSIT TELECOM, SOCIEDADE UNIPESSOAL, LDA. Click here to buy Portugal Area Code Database Other Information Language Code : pt (Portuguese) Country Number : 620 (Portugal) Country Code : PT (Portugal) Region Code : 13 Region Name : Porto City : Porto Timezone : Europe/Lisbon Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 41.1500 Longitude : -8.6100 ‹ previous : +351-22-(5510000...5519999) next › : +351-22-(5570000...5579999) Dialling Instructions For trunk calls: - 22 5550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 22 5550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5550000 ~ 5559999 (Count: 10,000) Example: +351-22-5550000 / 00351-22-5550000 (22-5550000 / -22-5550000) +351-22-5550001 / 00351-22-5550001 (22-5550001 / -22-5550001) +351-22-5550002 / 00351-22-5550002 (22-5550002 / -22-5550002) +351-22-5550003 / 00351-22-5550003 (22-5550003 / -22-5550003) +351-22-5550004 / 00351-22-5550004 (22-5550004 / -22-5550004) ...+351-22-xxxxxxx / 00351-22-xxxxxxx (22-xxxxxxx / -22-xxxxxxx) ...+351-22-5559995 / 00351-22-5559995 (22-5559995 / -22-5559995) +351-22-5559996 / 00351-22-5559996 (22-5559996 / -22-5559996) +351-22-5559997 / 00351-22-5559997 (22-5559997 / -22-5559997) +351-22-5559998 / 00351-22-5559998 (22-5559998 / -22-5559998) +351-22-5559999 / 00351-22-5559999 (22-5559999 / -22-5559999)